well yes, its mostly based on genetics.
but here are benchpress exercises that might help you understand what muscles are worked
decline bench - lower chest
flat bench - middle chest
incline bench - upper chest
wide grip decline bench - outter lower chest
wide grip flat bench - outter middle chest
wide grip incline bench - outter upper chest (near shoulders)
flyes (the valley maker as you would put it)
inclined flyes - upper inner chest
flat flyes - middle inner chest
decline flyes - lower middle chest
hope that helps ...
just dont do them all on one workout .... split it up.
but your genetics will be the main factor ... look at any 3 guys chests and they will all be different.
When it comes to chest shape, the very last sentence in Stalefish's post is the only one that really determines it. Unfortunately all the rest is just muscle magazine myth. You can't alter the shape of a muscle by working it from different angles. Variation is sometimes good for boredom, or recruit a slightly different set of support muscles, but it can't change the shape of the muscle. Same goes with all of your body parts. You can't change the shape of your biceps by going from a dumbbell curl to a preacher curl. Your muscle shape is pre-determined by the set of code your parents pass on to your body. Sorry to rain on your parade, but that is just the cold hard truth. If you want to see the shape on your chest better, along with working out it might behoove you to examine and possibly change your diet. You can certainly see the shape of the muscle better if it doesn't have a layer of bodyfat on it.
help me to
i got a problem like that to. I am a beginner at working out and will like to know how to get ride of my slight "man boob" chest i want know how often should i work my chest out a week cuzz i need extra help....and should i use push ups?
Push ups will help out the most because it's not just a chest exercise. The easiest and most effective way is to do a set or two every hour throughout the day.
You can't change the shape of your biceps by going from a dumbbell curl to a preacher
You address a crucial point here!
Originally Posted by jpfitness
The biceps is a fusiform (spindle-shaped) muscle whose fibers all run end to end in the same direction. And since a muscle fiber contracts on an all-or-nothing principle, you cannot selectively develop your "lower biceps" (I can assure you, those words sound like the stupidest ever to someone with a medical degree).
Not only that, but serious weight training NECESSARILY engages muscle fibers equally all around the biceps, so that you cannot selectively develop the long or the short head of your biceps. Regional recruitment is possible only at ridiculously low intensities that don't cause any hypertrophic change in the muscles.
Accumulation of biceps mass will make it top higher and by hitting the brachialis underlying it, you can push the lower half of the biceps slightly up. That's about all what can be done. You cannot change the shape of a muscle. Only make it bigger. But the good news is that you can change the way your upper arms look.
Likewise, from a scientific point of view AND practical experience, you can't develop "outer chest" or "inner chest". Because there is no such thing! Apparently, though, you can in theory try to put more emphasis on the sternal or the clavicular head, as they have opposite functions (shoulder flexion vs. shoulder extension). But in practice, it's very questionable whether or not it works at all.
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